Study on Preventing Urban Constructed Facilities from Earthquake Disaster

城市建筑设施防震灾害研究

基本信息

批准号：
61550411
负责人：
KAWANO Masahiro
金额：
$ 0.9万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61550411/
关键词：
Earthquake damage Strong ground motion Fault mechanism 不整形地盤

项目摘要

The main purpose of the research project is to obtain the methods of preventing the building structure and constructed facilities from destructive earthquake disaster. This project comprises 3 sub-project.(1) The study on the characteristics of the earthquake ground motions through layers, (2) the study on the associated structure damage of the building, and (3) the study on the effect o irregular soil structures on response spectra.The characteristics of the earthquake ground motion near the fault are obtained from the simultaneous observation at many points and the motions excited by the vibration generator are measured along the survey line having underground irregular geologic structures. These observational and experimental results are compared with the predicted theoretical values.It is found from observational and theoretical results that the amplitudes and peak frequencies of the ground motion near the fault are variable depending on relative positions to the presumed discontinuous geologic line. In the case of vibration tests, the velocity responses of measure points with underground irregularities are found to be corresponded with the calculated values.The effect of topography on surface motion is investigated in the case of incident SH wave. Several types of buried valley topography are analyzed. The method of boundary integral equation is applied for numerical integration of the field equation of motion. The degree of accuracy of the method is examined by comparing the response of ground motion calculated by this method with that of exact solution for several ground models.

研究项目的主要目的是获取防止建筑物结构和造成破坏性地震灾难的设施的方法。该项目包括3个子项目。（1）对地震地面运动特征的研究，（2）（2）对建筑物相关结构损害的研究，以及（3）（3）对响应谱的不规则土壤结构对响应的影响的研究。与同时在许多方面进行了验证，在许多范围内，在许多范围内，都可以在许多范围内进行验证，并且在许多方面均可在许多范围内进行验证。不规则的地质结构。将这些观察性和实验结果与预测的理论值进行了比较。从观察性和理论结果中可以发现，断层附近地面运动的振幅和峰值频率取决于与假定不连续的地质线相对位置的变化。在振动测试的情况下，发现具有地下违规的度量点的速度响应与计算值相对应。在事件SH波的情况下，研究了地形对表面运动的影响。分析了几种类型的埋葬地形。边界积分方程的方法应用于运动方程的数值集成。通过比较该方法计算的地面运动的响应与多种地面模型的精确溶液的响应来检查该方法的准确性。